类表映射器设计PHP和ZF

Question

有没有更好的方法与ZF期运用映射器，现实生活中的对象和table_objects工作。

这是我与Zend框架做到这一点：

class User_DbTable extends Zend_DB_Table_Abstract{
      protected $_name = "user"; // name of the table
}

用户类 - >用户对象：

class User{
  protected $_id;
  protected $_name;
  protected $_addresses; //list of OBJs

  public function set_name($_name){
    $this->_name = $_name;
  }
  public function get_name(){
    return $this->_name;
  }
  public function set_adresses($_addresses){
    $this->_addresses = $_addresses;
  }
// and so on....
}

映射器：

class UserMapper{
   protected $userTBL;

   public function __construct(){
     $this->userTBL = new User_DbTable();
   }
   public function __fatchAll(){
     $select = $this->userTBL->select();
     foreach($this->userTBL->fetchAll($select) as $row){
       $user = new User(); // model
       $user->set_name($row->name);
       // gat all the addreses of this user with eg. AddressMapper()
       $user->set_addresses($addresses); // array of object of address just like User
       $users[] = $user;
     }
     return $users;
   }
}

使用在控制器： 列表动作：

$userMP = new UserMapper();
$this->view->users = $userMP->__fatchAll();

或添加/保存动作：

$newUser = new User();
$newUser->set_name('somename');
$userMP = new UserMapper();
$userMP->save($newUser);

Answer 1

ZF让你延长Zend_Db_Table_Row类，并告诉你的类的Zend_Db_Table总是使用它。通过这种方式，您可以访问所有的Zend_Db_Table_Row功能，同时在上面添加自己的逻辑。

您可以是这样做的。

class User_DbTable extends Zend_DB_Table_Abstract{
      protected $_name = "user"; // name of the table
      protected $_rowClass = "User"; // The name of your Zend_Db_Table_Row class
}

class User extends Zend_Db_Table_Row {

  public function set_name($_name){
    $this->name = $_name;
  }
  public function get_name(){
    return $this->name;
  }
  public function set_adresses($_addresses){
    $this->addresses = $_addresses;
  }
// and so on....
}

您可以看到更多的Zend_Db_Table_Row 这里